Txoj cai ntawm Temperature Controller

Muaj ntau hom tshuab thiab hluav taws xob,
Mechanically, ob txheej hlau nrog sib txawv thermal expansion coefficients raug nias ua ke. Thaum kub hloov, nws curvature yuav hloov. Thaum nws khoov mus rau ib qho twg, lub voj voog txuas nrog (lossis txiav tawm) kom lub tub yees (lossis cua sov) cov cuab yeej ua haujlwm.
Cov khoom siv hluav taws xob ntsuas kub xws li thermocouples thiab platinum resistors hloov cov cim kub rau hauv hluav taws xob cov cim, thiab tswj cov relays los ntawm circuits xws li microcontrollers thiab PLCs ua kom cua sov (lossis txias) cov cuab yeej ua haujlwm (lossis nres).
Kuj tseem muaj mercury thermometer hom, uas yuav muaj qhov chaw sib cuag txuas nrog mercury thaum kub nce mus txog.